VDC Secretary Baburam Dhungana said Manika Panchkoti, 20, killed herself consuming poison on Friday night after she was declared fail in the exam.
It is said that Panchkoti, a student at Saraswati High School, who failed in mathematics, wrote suicide note before committing suicide.
Police said the dead body has been taken to the District Hospital for postmortem.
Dalit girl commits suicide after failing in SLC